As I mentioned, this looks very promising if we should decide to pursue it, but I’m a bit confused about the definition of the DEL_FILTER entry point.

The Advanced Topics Manual for LISTSERV 17.0, Section 4.2 List Exit Points, sub para 4.2.2 DELETE/SIGNOFF/CHANGE Entry Points, under Name: DEL_FILTER says: "Description: This exit point is called for all SIGNOFF commands, and for DELETE commands issued by a registered Node Administrator. It is NOT called for DELETE commands originating from the list owner”.

When a user tries to unsubscribe, does that use the SIGNOFF command? I’ve looked in the User (sorry, List Subscribers) Manual and List Admin (List Owner’s) Manual, and don’t see the email command for a user to unsubscribe themself from a list. I’ve always used delete, but that’s as an admin, I can’t say that I’ve used email to unsubscribe myself from a list...

Presumable, the Web Interface would use the same code, just generate the same params as the mail interface uses, so that would also use SIGNOFF, rather than DELETE?